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The tv flashes between source & hdmi on screen

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
..

Posted on Dec 18, 2016

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Posted on Jan 02, 2017

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gopakumarg43
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SOURCE: Setting Signal Source

Please refer the user manual to this TV for details. It sounds that there is a problem to the main system control memory IC to your TV. If so, it might have to be replaced. Contact any service technician.
Gopakumar Gopalan Google

Posted on Feb 22, 2014

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1 Answer

How do I use it as HDMI screen for my PC? How to change Channel source?


If you plug your hd cable in hdmi on pc then plug into tv hdmi you have to clone the screen in you pc settings right click any ware on the pc screen you will get the graphics card settings go to screen adjust at the bottom click clone then source on tv hdmi in there are other ways just let me know what windows you using

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My tv comes on shows a picture for a few seconds then it goes to a white screen no sound comes on. the screen says your tv does not support this programs content protection. replacing the tv HDMI cable...


Well either your HDMI source or the HDMI processing part of the TV is not right.

Try a different HDMI source and if the problem persists then it's the TV and you probably can't fix it on your own.

Or, of course, if you can use component cable just stay with it and save time and money.

Aug 11, 2014 | Sanyo Televison & Video

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How fix samsung led tv screen flash/flicker problem.flashing with in a seconds gap.


Sounds like your HDMI connector. Press and wiggle the connections on the set and the converter box.

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I connected my dvd player to my coby hd tv, and the movie still want play, maybe I have it on the wrong chanel. What chanel should the hd tv be on?


Are you using a HDMI cable? Push the SOURCE button & select the corresponding HDMI input with the HDMI input from your DVD player. The HDMI inputs on the tv should be numbered & you can then select the correct number HDMI on the source screen. Good luck.

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1 Answer

Over the last month or so my T755 has developed blue video noise coming out of the hdmi switcher for high def sources, i know its not the cables or the display because the problem goes away when i take the...


My $.02 for free...

What source(s) are affected? And WHY do you feel compelled to keep the NAD between the source video and the TV, especially if it adds nothing by being there?

Since my TV has a multitude of inputs I run my high-rez video sources only to the TV and high-end audio sources only to my receiver since neither device really benefits from or enhances the other medium.

Feb 08, 2011 | NAD T755 Receiver

1 Answer

When i go to hook up a hdmi cable to my philips flat screen it wont recognize that i have a hdmi plugged into it. so what could that be the tv? the hdmi works with my other tv though


Hi,
This model has 4 HDMI inputs, do you get same problem in each HDMI input?
Did you checked HDMI input with any other video source like dvd player or PS3 etc instead of cable box?
Below are few helpful tips to connect HDMI input..
1. Ensure that your HDMI cable is certified.
2. Press SOURCE on the remote control to switch to another source and then switch back to the HDMI source.
3. Reset the accessory device and the TV.
• Turn on the TV
• Select the HDMI channel
• Turn on the accessory device
4. While the TV and the accessory device are powered on, unplug either end of the HDMI cable and then reinsert the cable.
Try above options and if tv still does not show picture of any video source through HDMI then it seems problem of HDMI processor located on main board, visual check is needed by qualified tech or call Philips if tv is under warranty.
Hope these info will help you.
Thanks.

Nov 26, 2010 | Philips 42PFL7403D/27 42 in. LCD TV

1 Answer

When the hdmi cable is plugged in the screen become black and it flashes off and on!


TRY A NEW HDMI CABLE, SOME NEW TV'S REQUIRE 3.1 HDMI CABLE MAKE SURE IT IS THE RIGHT VERSION, THE SOURCE COULD ALSO BE THE PROBLEM, WHAT IS THE CABLE PLUGGED INTO, ECT... CABLE BOX, DVD PLAYER ANS SO ON, SWITCH CABLES AND SOURCES TO ELIMINATE ALL POSSIBLE PROBLEMS

Dec 30, 2009 | JVC HD-61Z456 Television

2 Answers

Not able to get picture when connected to PC via HDMI


bbutler,
Your Toshiba can handle PC screen resolution up to 1024 x 768
Lower the resolution of the PC screen to somewhere between "640 x 480" and "1024 x 768". It will work just fine.
It's not likely that there is a any physical problem with either the PC or HDTV.
1. Right-click anywhere on your desktop
2. [Properties]
3. [Settings] tab
4. Slide the "Screen Resolution" pointer to the LEFT to adjust and click on [OK]
*DONE*

Oct 16, 2009 | Toshiba 37RV525R 37 in. LCD HDTV

1 Answer

Screen flashes on for around 1-2 seconds before turning off


Your TV has a defective component on the power supply section. Need service by electronics technician.

Jul 27, 2009 | Computers & Internet

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